chore(organization): remove cruft from .gitignore and .npmignore
docs(configuration): add an example configuration with xml output

Adds an example configuration file showing how to use onPrepare to set up
an additional Jasmine reporter.
feat(config): add exmples for dealing with log-in

Adds examples for how to log in when the login page is not written
in Angular. New examples are in spec/login.